ECG waveform generator for Matlab/Octave

The files ECGwaveGen.m and QRSpulse.m were contributed to PhysioNet by Floyd Harriott of
Stellate Systems. ECGwaveGen generates a synthesized ECG signal with
user-settable heart rate, signal duration, sampling frequency, QRS amplitude
and duration, and T-wave amplitude; it uses QRSpulse to create
premature beats followed by compensatory pauses. The algorithm is based in
part on Ruha A and Nissila S, "A real-time microprocessor QRS detector system
with a 1-ms timing accuracy for the measurement of ambulatory HRV", IEEE Trans
Biomed Eng 44(3):159-167 (1997), in which the authors describe an
artificial ECG signal based on the standard test waveforms specified in
ANSI/AAMI EC13:1992 (American National Standard: Cardiac Monitors, Heart Rate
Meters, and Alarms), available from AAMI. (Please note that the synthesized ECG is not intended
to be highly realistic; the primary application is for testing the fidelity of
analog signal-processing components of cardiac monitors and similar
instruments, using an ECG-like signal with well-defined characteristics.)